Sprayer.



Entente@ Aug. l5, 1911.

ATTORNEY uw .w wm i y To all whom if may concern:

" TED STATES-.PATENT DE WANE B. Sllllilfllfl'ff,A O'E DEERFIELI), NEWYORK..

Be it known that I, DE WANE SMITH,

a resident of Deerfield,v in the county ofl to 4provide'a hand'sprayerof simple constructionl yetadapted to throwI a continuous spray,and'ha'vi'ng means lto easily regulate the fine'ness of'the spray.

'Figure 1.' isa longitudinal 'sectional view. Fig. 2. is aAperpendicular cross sectional view on line 2-2 of Fig. 1. Fig. 3. is alongitudinal-v sectio'nal' view of the nozzle and adjacent partsoffjthey sprayer onan "enlarged scale.' Fig. LL 'is a cross sectionalview on -line 4 4 Fig. 3. *Fig 5. is al longitudinal sectional view'ofthe sprayer without air 'connection between 'thel air 'chamber- 'andliquid-receptacle; 4Fi'gs.'6, 7 8 and 9 are longitudinal sectional views'of modified formsofnozzle onanenlaged'scale.'

Referring-to the drawing in a more particular description, 6 is vthe aircompression cylinder having a cylinder head 7 at `the end where thecompression is made, and .receivf ing the piston head 8 which isoperatedv by the piston rod 9 and the handle 10'. Be-l yond* thecylinder head '7 therev extends from the cylinder 6, the airjcha'mber 11preferably tapering toward its outer end in'which is located 'theatomizin'g nozzle 12.

' In the cylinder head .7,a ball valve 18. is placed adapted to'allowgairvto -be l forced from the cylinder G 'into thefailr'jcllainbei'11 and to close and prevent 'the air from escaping back into thecylinder when the piston head 7 is withdrawnon its backward stroke.,l f'Y Immediately-below the' air chamber 11 is placed-,thefliqui-dVreceptacle 14 Whchiniay be 4-of'any desired shape but which7Iunakepreferably in' the form of a cylinderl havl Speci-eation ofIietter's Patent. Application filed October 15 A1909. Serial No.522,722.

sition on the part 18.

SPRALYIER.

having its longitudinal axis at right angles to the longitudinalaxisofthe airchamber 11 and cylinder "6." For -fllingg the liquid'receptacle 14 there'is -an,opening at its top to oneside ofthe airchamber 11, having an air tight screw ca-p 15.-' There is a passage'forair from theairl chamber '11 to the liquid receptacle 14, preferably inth'e1\form of a tube 16 which extends upward nearly to the-top of theair chamber. A tube 17 ing-as 'Side tow-ard the .aiechambe 11 and'Patented Aug. 15,' I1911.

for the passage of the liquid-extends from near thefbottom ofthe liquidreceptacle .14 upward through the top thereofinto the air chamber 11 andthen forward into `the nozzle 12. l v The nozzle 12 consists of a part18 projecting from the tapering end of theair` chamber 11y and threadedto receive the cap 19 which. has a 'knurled'lange 19a to allow the captobe easily screwed to desired po- 'lhrofllgh `the part` 18 is a hole 18alarge enough to al-low 'the liquid tube 17 'to extend therethrough andlstill have an airspace between the tube 17 and the part 18-on allsides. InwardA projections 18b from the 'part 18 hold the tubecentrallylocated 'in the-hole'181.' The tube 17 extends slightly beyondthe part 18 and has cut i'nto this projecting length' slots '17.

In the 'end of the 'cap 19 a` hole 19b provided oppositeV the end' ofthe'uid tube 17 For operation the liquid 'receptacle 14 is filled andherein lies one of `the advantages 0f-my invention in providing aseparate air chamber; .Heretofore many sprayeigs have chamber,necessitating the A artial 'filling only 'of the .liquid re'ceptac e andgiving been constructed in which the tofp 'of' the liquid receptacle hasacted 'as-the only-air very Auncertainandunsatisfactory spray at thebeginning of 'operations and `particularly if. the 4receptacle had been-too nearly'.

filled. Asthe tu e16 extends upward some distance intoth air. chamberv11, the sprayer can beheld at aconsiderable angle either way ofi' 'ofthe horizontal without the liquid 4 escaping' into the airl chamber theliquid receptacler-isfull." l

In operating, a few' strokes of the-piston even when causes air pressureenough to obtain a con" tinuous spray which is thereafter easilylmaintained by little eort on the part of the operator. It isevident'that as the air is compressed inthe air chamber it operates intwo ways-upon the liquid; in one way, by

, the rush of air directlyfoutof the air chamber v11 through the holes18 and 19h, causing a suction uponthe adjacent e'nd of the liquid tube17 after'the' manner of anfejector or'the common 'atomizerg inthe otherWay the air pressure is directed downward through the tube 16 upon thesurface of the liquid andthereby forces the liquid out of the receptacle:through the.liqu1d tube 17 The relative quantity of air and liquidpass' ing" out and thereby the character of theA vspray is easilycontrolled by the operator ad justing the cap 19 nearer to or fartheraway from the end of the tube 17. The `slots v17a are of sch size as toallow suliicient airto atomize the fluid, to mingle with the vliquid -inthe nozzle even if the cap is screwed up tight to the end of the tube17;

' 'If for any purpose, ver-y coarse spra-y is desired, the cap. 19 canbeentirely removed, giving freer escape to both air and liquid i' andresulting in a I spray of appreciable A further modification showninFig. 5 is.

to dispense entirely withv theair tube 16, resulting in the sprayera'ctingentirely bythe force of 'the air at the blast opening 'and v'g'wit'hout the directforcing pressure of the air upon the liquid. AThepresenceof the air chamber still 'maintains a continuous Spray: vl'consider the form'ofnozz'le lhaving the slots 17al in the liquid tubethe preferable form of constructiopbut do not wish to con-4 ne myself tothat form butto cover any form allowing air from the hole 18a tomingle-with the liquid in vcontrollable proportion proximate the blastopenin vGreater facility for escape of air rom the air chamber controlsthe character of vthespray by increasing the proportion of air to waterabsolutely in both forms of-sprayer and 'also relatively in the formhaving an air connection between the air chamber and liquid receptacleby reason of the freer escape of air reducing the downwardf'orce" of airupon the liquid and so 'forcing less liquid out throu h the liquid tube.

Fig. 6 shows t e constant opening; -17b for mingling air with theliquidformed by having the end of'tube 17 at an an le Awith the innerface of the cap 19; Fig. i shows the constant opening formed by havingslots in the innerface of the cap extending from outside the end of thetube 17 ,to a point within.

"by Letters Patent. is

.end of the liquid tube with suicient Fig; 8 shows the constantopeningformed by holes 17 in the tube 17 near the nozzleI end.

In all these -forms a constant opening is tion herein shown may bemade-:without de .parting from the spirit of myj invention.

What I claimas new andv desireto secure .`1-.The combination in"asprayer of a';

cylinder 'having a head witha trap valve, a piston o erating 1n thecylinder, an air v chamber a jacenttofthe'cylinder head, a liquidreceptacle beneath' said air chamber, a liquid tube leading from thelower part of said liquid receptacle, an air tube connecting thetop oftheliquid receptacle with the uppen-part oftherairjchamber', and alnozzle opening out of the air chamber and 4surrounding the end of theliquid tube with sufBcient-passage forair on all sides, subst'antiallyas set'forth;

. 2. The combination in a sprayer of a cylindery having. a head with atrap valve, a piston operating .in the cylinder, an air .chamberadjacent to the cylinder head, a .liquidreceptacle adjacent to the airchamber, a liquid tube extending from the lower part of the liquidreceptacle .and provided with slots in its outer end, a nozzle openingout of the air chamber and surrounding the sage for air on all sides,and acap in'threaded engagement with said nozzle and having 'a hole inits head opposite the `liquid tube, said cap being `movable onsaidnozzle into and outvof engagement with the slotted -end of saidliquid tube, substantially as set forth.'

'3, The combination in' a sprayer of a cylinder'having a head with atrap valve,

a piston operating in the c'ylinder, an air'y chamber adjacent to thecylinder head, .a liquid receptacle' beneath. said air chamber, a liquidtube extending lfrom the lower' .part of said liquid receptacle and;provided with slots in its outer end, an air "tube con- 'f necting thetop of the liquid receptacle with 4the upper part of the air chamber, anozzle opening out of the air chamber and surrounding the end of theliquidjtube with suf# iicient passage for air on allsides, and a cap inthreaded engagement with said novzzle nat-ure in the presence-of twowitnesses, this, land having a hole in itshead opposite the 7th day 'ofOctober, 1909.

liquid tube, said cap being movableon saidnozzle into and out ofengagement with the f slotted end of said liquid tubei substantiallyWitnesses:

as set forth. l EMMA S. Hnssn, In witness whereof, I have axed my sigvE. EHRESMAN.

DE WANE B. SMITH.Y

